Start with your documents. Only yours.

Claimlight reads the files you supply and nothing else. No web search filling gaps with strangers' numbers, no library of other people's papers. If a claim cannot be tied to a sentence in your set, that is treated as a finding, not an inconvenience. Both reports below are invented samples.

PDF
A

Report A · invented sample

Acme Packaging Lab, Drop Test Report DT-118. Twelve pages. Face drops at 1.2 m for the Pebble handheld scanner, two insert designs, housing inspection after each drop.

PDF
B

Report B · invented sample

Northline Transit Testing, Report NT-42. Nine pages. Corner and edge drops with shock sensors inside the unit, same two inserts, peak acceleration tables on page 7.

Scrub forward with the road line at the bottom. The job takes four more markings to become a paragraph a researcher can sign.

9:01 AM · stage 01 · sentences lifted, word for word

Nothing is paraphrased yet.

First the documents are broken into their own sentences, kept verbatim with page numbers. Summarizing from lifted sentences, instead of from a model's memory of the document, is what makes every later claim checkable.

Report A · page 4 · will be used"After twenty 1.2 m face-down drops, no housing cracks were observed in units packed with the two-layer insert."

Report B · page 7 · will be used"Mean peak acceleration on corner drops fell from 62 g (single-layer) to 41 g (two-layer)."

Report A · page 2 · context only"Test units were production-representative housings without batteries installed."

Report B · page 3 · context only"Ambient temperature during testing was held between 19 and 23 degrees Celsius."

Context sentences are kept too. They are how the next stage knows what a result does not cover: no batteries, mild temperatures, nothing above 1.2 m. Remember that ceiling. It matters in two markings.

9:02 AM · stage 02 · claims earn their sentences

A claim exists only if a sentence holds it up.

The draft is written claim by claim, and each one must point at the lifted sentence that supports it. The link is stored, not implied, so a reader can pull any thread later.

Claim: "No cracked housings in 20 of 20 drops"→Report A, page 4: "no housing cracks were observed" after twenty drops

Claim: "Peak shock cut by about a third"→Report B, page 7: 62 g to 41 g, a fall of about a third

Claim: "The two-layer insert is the safer shipper"→Judgment call. Both reports point the same way, so it may stand, labeled as the recommendation it is

That third row is the honest middle ground: interpretation is allowed, disguised interpretation is not. A citation proves the sentence exists and says what the claim says. It does not prove the study was well run. That judgment stays with the researcher, which is why the last marking belongs to a person.

9:03 AM · stage 03 · the tempting one

One claim sounded great. It is not in the paragraph.

Unsupported · left out

~~"So the two-layer insert should also survive a 2 m warehouse shelf drop."~~

Why it failed: neither report dropped anything from above 1.2 m. The sentence is a guess wearing the reports' clothes. Claimlight flags it, shows its reasoning, and the claim stays out of the draft unless the researcher overrides it out loud.

What "unsupported" covers

Beyond the tested range, like the 2 m drop above.
Numbers with no page: any figure that cannot be opened at its source.
Two sources stitched into a third fact neither one states.

What you can do about one

Leave it out, the default, with the flag kept in the export.
Soften it into the supported version: "survived every 1.2 m drop in both reports."
Override and sign it, with your name attached to that claim in the record.

Document limits travel with the summary too: these samples tested housings without batteries, at room temperature. A good paragraph about drop tests should not quietly become a promise about winter loading docks.

9:04 AM · stage 04 · ready for a human

One paragraph. Every claim on a leash.

Claimlight turns supplied PDFs into summaries where each claim opens the exact sentence behind it, and what cannot be supported is marked and left out. This finished sample is where the page loads: scrub backward on the road line to audit how it got here. Then the decision is the researcher's, and it works.

Approved

Finished paragraph · sample job, invented reports

The two-layer foam insert is the safer shipper. In Acme's 1.2 m face drops, units in the two-layer insert showed , and Northline's corner drops cut versus the single-layer insert.

Recommendation: ship the two-layer insert.

Left out on purpose · unsupported

~~"So it should also survive a 2 m warehouse shelf drop."~~ Neither report tested above 1.2 m, so this stayed out.

PREPARED BY CLAIMLIGHT · UNAPPROVEDApproving puts Parker's name on it. Any change after that, a withdrawn report, a corrected figure, wipes the stamp and asks again.

After 9:04 · stage 05 · your call, your copy

Approved paragraphs travel with their proof.

$19

per seat, per month. Every seat gets unlimited supplied documents. The two-document sample, like this page, needs no account and no card.

Exports keep the leash on

Memo export: the paragraph with live citations, the left-out claims listed at the end, approver's name on the record.
Claim sheet: every claim, its sentence, its page, its status, as a spreadsheet a reviewer can check line by line.
Correction history: what changed, who changed it, what it reset.

Correcting, honestly

Fix a number and the approval resets, as it did on stage 04. Stale sign-off is how errors get tenure.
Disagree with a flag and a researcher can override it, signed. The override shows in every export.
Withdraw a document and its claims orphan in place, never silently rewritten.

"The first summary it gave me left out the sentence I most wanted to write, and showed me why. That is the moment I started trusting the ones it kept."
Invented for this fictional site: J. Parker, packaging researcher, Madison

First job queued, in this demo.Drop in two PDFs and your first paragraph would arrive like stage 04: cited, flagged where it must be, and waiting for your name.